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CHAPTER 5 PERIODIC MAINTENANCE
5-5
3. PERIODICAL CLEANING
Clean the following parts periodically to avoid any printer problems or print image defects.
!
CAUTION:
While drum unit and scanner window cleaning basically can be implemented by the end user,
the electrical terminals inside the printer and on the drum unit should be cleaned by a service
technician. Instruct the users not to touch those terminals.
3.1 Cleaning the Printer Exterior
Clean the printer exterior to keep the printer clean.
1) Turn off the power switch and unplug the power cord.
2) Wipe dirt and dust away from the printer exterior with a damp cloth and allow the printer
to dry completely before turning the power on again.
!
CAUTION:
Use water or neutral detergents for cleaning. Cleaning with volatile liquids such as thinners or
benzene will damage the surface of the printer.
3.2 Cleaning the Drum Unit
When replacing the drum unit or toner cartridge with a new one, be sure to clean the drum unit.
1) Turn off the power switch and unplug the power cord.
2) Remove the drum unit from the printer.
3) Clean the primary corona wire inside the drum unit by gently sliding the wire cleaner
(blue tab) to the right end and left end several times.
Fig. 5-7
4) Return the cleaner to the home position.
!
CAUTION:
Make sure that the wire cleaner on the drum unit is returned to the home position (
▲
mark
position) before re-installing the drum unit into the printer, or printed pages may have vertical
stripes.
5) Install the drum unit into the printer.
Home position (
▲
)